Research Data Leeds Repository

Citation

Lui, Kui and Loveridge, Fleur and Boardman, Richard and Powrie, William (2022) Data on coupled hydrothermal flow in fine sands based on X-ray CT imaging and numerical simulation. University of Leeds. [Dataset] https://doi.org/10.5518/1200

Dataset description

Coupled hydrothermal flow can occur in soils, for example in applications such as ground heat storage and nuclear waste disposal. Therefore, approaches to quantitative analysis of water transfer in response to imposed thermal gradients are required, especially in unsaturated conditions. Analysis methods also require validation by laboratory and field data, which can be hard to obtain. This dataset includes the processed results from X-ray µCT experiments where specimens of a fine sand and a fine silty sand were subjected to heating from their base. Repeated scans, set up to balance image quality and scan duration, were carried out during the heating process, on specimens between 20% and 50% saturation. Gaussian decomposition techniques were used to determine the changing soil phase proportions throughout the experiments, which are reported here. The CT data is accompanied by COMSOL files for simulation of the experiments on the fine sand. The dataset is to accompany the paper at https://doi.org/10.1016/j.gete.2022.100380 and provides the processed information used to construct the key results figures in that paper.

Keywords:	Hydrothermal flow, Unsaturated soils, X-ray μCT techniques, Soil saturation, Grain size
Subjects:	H000 - Engineering > H200 - Civil engineering > H250 - Geotechnical engineering
Divisions:	Faculty of Engineering and Physical Sciences > School of Civil Engineering
Related resources:	Location Type https://doi.org/10.1016/j.gete.2022.100380 Text
License:	Creative Commons Attribution 4.0 International (CC BY 4.0)
Date deposited:	05 Aug 2022 14:32
URI:	https://archive.researchdata.leeds.ac.uk/id/eprint/1008
Additional details Additional details Creators or authors: Creators ORCID Other ID Email Primary affiliation Primary affiliation ID Primary affiliation ID type Secondary affiliation Secondary affiliation ID Secondary affiliation ID type Lui, Kui https://orcid.org/0000-0002-7533-1272 Institut de Radioprotection et de Sûreté Nucléaire https://ror.org/01ha22c77 ror Loveridge, Fleur https://orcid.org/0000-0002-6688-6305 University of Leeds https://ror.org/024mrxd33 ror Boardman, Richard https://orcid.org/0000-0002-4008-0098 University of Southampton https://ror.org/01ryk1543 ror Powrie, William https://orcid.org/0000-0002-2271-0826 University of Southampton https://ror.org/01ryk1543 ror Type of data: Dataset Research funders: EPSRC, RAE Grant numbers: EP/G036896/1 Publication date: 2022 Resource language: English Metadata language: English Publisher: University of Leeds Contact email: f.a.loveridge@leeds.ac.uk Last Modified: 24 Jul 2024 14:16

Files

Documentation

Readme [4kB] Readme [4kB] Readme [4kB] Security: Anyone File name: readme_lui_2022.txt Content type: Documentation Mime-Type: text/plain License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 4kB

Data

Grey Value and Saturation Data [2MB] Grey Value and Saturation Data [2MB] Grey Value and Saturation Data [2MB] Security: Anyone File name: Saturation_and_Grey_value.xls Content type: Data Description: Processed and derived data from the CT experiments Mime-Type: application/vnd.ms-excel License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 2MB

Water balance calculations [116kB] Water balance calculations [116kB] Water balance calculations [116kB] Security: Anyone File name: missing_moisture.xls Content type: Data Mime-Type: application/vnd.ms-excel License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 116kB

Outflow boundary conditions [115kB] Outflow boundary conditions [115kB] Outflow boundary conditions [115kB] Security: Anyone File name: outflow_BC.xls Content type: Data Description: Input condition for COMSOL model Mime-Type: application/vnd.ms-excel License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 115kB

Relative permeability results [1MB] Relative permeability results [1MB] Relative permeability results [1MB] Security: Anyone File name: relative_permeabilty.xls Content type: Data Description: Ouput from COMSOL simulation Mime-Type: application/vnd.ms-excel License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 1MB

Fine sand 20% saturation model [59MB] Fine sand 20% saturation model [59MB] Fine sand 20% saturation model [59MB] Security: Anyone File name: S20.mph Content type: Data Description: COMSOL model License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 59MB

FIne sand 30% saturation model [58MB] FIne sand 30% saturation model [58MB] FIne sand 30% saturation model [58MB] Security: Anyone File name: S30.mph Content type: Data Description: COMSOL model License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 58MB

Fine sand 40% saturation model [58MB] Fine sand 40% saturation model [58MB] Fine sand 40% saturation model [58MB] Security: Anyone File name: S40.mph Content type: Data Description: COMSOL model License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 58MB

Fine sand 50% saturation model [58MB] Fine sand 50% saturation model [58MB] Fine sand 50% saturation model [58MB] Security: Anyone File name: S50.mph Content type: Data Description: COMSOL model License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 58MB

Thermal conductivity of soils at different degrees of saturation [53kB] Thermal conductivity of soils at different degrees of saturation [53kB] Thermal conductivity of soils at different degrees of saturation [53kB] Security: Anyone File name: TC_of_silt_and_clay.xls Content type: Data Description: Data from Dong Y., McCartney J.S., Lu N. Critical review of thermal conductivity models for unsaturated soils Geotech Geol Eng, 33 (2) (2015), pp. 207-221 Mime-Type: application/vnd.ms-excel License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 53kB